Dear list:
We know that our x10 program will be compiled to java program for running on
JVM when using java back-end.
For example, I write a simple "Hello World" program as Hello.x10. When I
compile Hello.x10, I get three generated java files - Hello.java,
Hello.class, Hello$$Main.class.
Now my question is that we can run x10 program with command "x10", but can
we run the program directly with its java files? For example, "java Hello".
I try this way, using -classpath to add x10 runtime jar, but the result is:
java -cp
/home/cheermc/Desktop/x10dt/plugins/x10.runtime_2.2.1.201109271452.jar Hello
Exception in thread "main" java.lang.NoClassDefFoundError: Hello
Caused by: java.lang.ClassNotFoundException: Hello
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
Could not find the main class: Hello. Program will exit.
I find that it's different from normal java file because compiling a
Hello.java file will only generate a Hello.class file but no
Hello$$Main.class file. I wonder how the x10 program finally run on JVM with
java command. With the answer, we can integrate x10 program into java
program by using the binary-format file.
PS: I read Native Code Integration in x10 language specification, but it
seems not so helpful for me.
Best regards.
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